<van-field 
name="{{myItem.propValues.[1].value}}"
label="{{myItem.propValues.[1].value}}"
required="{{myItem.propValues.[2].value}}">
    <template #input>
      <van-radio-group v-model="model{{myItem.id}} direction="horizontal" @change="changeRadioGroup{{myItem.id}}">
        <van-radio name="1">单选1</van-radio>
        <van-radio name="2">单选2</van-radio>
      </van-checkbox-group>
    </template>
</van-field>